Unlock instant, AI-driven research and patent intelligence for your innovation.

Fuel battery

a fuel battery and anti-rust technology, applied in the field of fuel batteries, can solve the problems of anti-rust plate displacement, fuel battery provided with such a mechanism to suppress displacement, and increase the size and achieve the effect of suppressing the displacement of the anti-rust pla

Active Publication Date: 2019-03-26
TOYOTA JIDOSHA KK
View PDF22 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Effectively suppresses anti-rust plate displacement caused by thermal expansion differences without increasing the fuel battery's size, ensuring alignment and reducing the risk of contact issues while maintaining electrical conductivity.

Problems solved by technology

If the anti-rust plate and the current-collecting plate are made of different metals, then the anti-rust plate may be shifted in the planar direction and be displaced due to imbalanced temperature distribution during power generation and a difference in thermal expansion between the different types of metals.
However, the fuel battery provided with such a mechanism to suppress displacement will increase in size.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fuel battery
  • Fuel battery
  • Fuel battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021]The following describes one embodiment of a fuel battery according to the present invention, with reference to the drawings.

[0022]FIG. 1 is a side view of a fuel battery according to the present embodiment. FIG. 2 is a schematic exploded perspective view of a fuel cell stack making up the fuel battery according to the present embodiment. FIG. 3 is a cross-sectional view of a cell making up a cell laminated body of the fuel cell stack.

[0023]As illustrated in FIG. 1, a fuel battery 1 according to the present embodiment includes a fuel cell stack 12, and end plates 13 disposed at both ends of this fuel cell stack 12. The fuel battery 11 is mounted on a movable body, such as a vehicle, for use. The end plates 13 are fastened by fastening rods 14 for mutually coupling, and the fuel cell stack 12 is pressurized at predetermined load from the both end sides by such a fastening force.

[0024]As illustrated in FIG. 2, the fuel cell stack 12 includes a cell laminated body 21, current-coll...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thermal expansionaaaaaaaaaa
temperatureaaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

A fuel battery 11 includes a cell laminated body 21 including lamination of a plurality of cells 20, a current-collecting plate 22 disposed at an end of the cell laminated body 21, the current-collecting plate being made of a metal material, and an anti-rust plate 23 disposed between the cell laminated body 21 and the current-collecting plate 22, the anti-rust plate being made of a metal material that is different from the metal material of the current-collecting plate 22. The anti-rust plate 23 includes a protrusion 31, and the current-collecting plate 22 includes a fitting hole 41, into which the protrusion 31 is fitted.

Description

BACKGROUND OF THE INVENTION[0001]Field of the Invention[0002]The present invention relates to a fuel battery provided with a cell laminated body including the lamination of cells.[0003]Background Art[0004]A fuel cell stack making up a fuel battery includes the lamination of a cell laminated body that is a plurality of cells laminated, each cell being made up of a membrane electrode assembly sandwiched between plate-shaped separators from their both sides, and current-collecting plates placed on both sides of the cell laminated body, and includes an anti-rust plate including a sacrificial plate placed between the cell laminated body and a current-collecting plate (see Patent Document 1, for example).CITATION LISTPatent Document[0005][Patent Document 1] JP2007-87766 ASUMMARY OF THE INVENTION[0006]An anti-rust plate is held while being pressurized and sandwiched between the cell laminated body and the current-collecting plate. If the anti-rust plate and the current-collecting plate are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(United States)
IPC IPC(8): H01M8/24H01M8/0206H01M8/2465
CPCH01M8/0206H01M8/2465H01M8/247H01M8/249Y02E60/50
Inventor KOBAYASHI, MASAYAKANNO, DAISUKEYOSHIZUMI, TOMOO
Owner TOYOTA JIDOSHA KK